new windows types

lib/ui/windows/chat_window.rb

@@ -5,50 +5,17 @@ module UI
     module_function
 
     def chat(app, services:)
-      cols = app.cols
-      rows = app.rows
-      w = cols - 8
-      h = rows - 6
-      window = BBS::Window.new(title: ' Live Chat ')
-      window.layout(5, 3, w, h)
-      window.theme = app.theme
-
-      history = BBS::Widgets::ScrollView.new(lines: services[:chat].history.map { |l| format_line(l) })
-      history.layout(window.bounds.x + 2, window.bounds.y + 1, w - 4, h - 5)
-      window.add(history)
-      history.scroll = [history.lines.size - history.bounds.height, 0].max
-
-      input = BBS::Widgets::TextInput.new(placeholder: 'Type a message and press Enter…')
-      input.layout(window.bounds.x + 2, window.bounds.y + h - 3, w - 14, 1)
-      input.on_submit = lambda do |value, _|
-        next if value.strip.empty?
-        services[:chat].broadcast(app.context[:username] || 'Anonymous', value.strip)
-        input.value = ''
-        :handled
-      end
-      window.add(input)
-
-      close = BBS::Widgets::Button.new(label: '&Close',
-                                       on_click: ->(_) { app.close_window(window) })
-      close.layout(window.bounds.x + w - 11, window.bounds.y + h - 3, 9, 1)
-      window.add(close)
-
-      # Stash a poll lambda on the window so the app tick can pull updates
-      window.instance_variable_set(:@chat_poll, lambda do
-        new_lines = services[:chat].drain(app.session_id).map { |l| format_line(l) }
-        unless new_lines.empty?
-          history.lines = (history.lines + new_lines).last(500)
-          history.scroll = [history.lines.size - history.bounds.height, 0].max
-        end
-      end)
-
-      window.reset_focus
-      window.focus_manager.focus(input)
-      app.open_window(window)
-      window
+      username = app.context[:username] || 'Anonymous'
+      BBS::Windows::Stream.open(app,
+        title: ' Live Chat ',
+        initial_lines: services[:chat].history.map { |l| format_chat_line(l) },
+        placeholder: 'Type a message and press Enter…',
+        on_submit: ->(text, _a) { services[:chat].broadcast(username, text.strip) },
+        on_poll:   ->(a)         { services[:chat].drain(a.session_id).map { |l| format_chat_line(l) } }
+      )
     end
 
-    def format_line(line)
+    def format_chat_line(line)
       "  \e[2;37m#{line.timestamp}\e[0m  \e[1;33m#{line.username}\e[0m: #{line.text}"
     end
   end